SU1409137A3 - Actuator with antifriction ring and lead screw - Google Patents

Actuator with antifriction ring and lead screw Download PDF

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Publication number
SU1409137A3
SU1409137A3 SU843828179A SU3828179A SU1409137A3 SU 1409137 A3 SU1409137 A3 SU 1409137A3 SU 843828179 A SU843828179 A SU 843828179A SU 3828179 A SU3828179 A SU 3828179A SU 1409137 A3 SU1409137 A3 SU 1409137A3
Authority
SU
USSR - Soviet Union
Prior art keywords
bearing
screw
housing
drive
lead screw
Prior art date
Application number
SU843828179A
Other languages
Russian (ru)
Inventor
Бетцинг Клаус
Бетцинг Рудольф
Бетцинг Аннетте
Бетцинг Ульрих
Original Assignee
Клаус Бетцинг (Фирма)
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Клаус Бетцинг (Фирма) filed Critical Клаус Бетцинг (Фирма)
Application granted granted Critical
Publication of SU1409137A3 publication Critical patent/SU1409137A3/en

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H25/00—Gearings comprising primarily only cams, cam-followers and screw-and-nut mechanisms
    • F16H25/18—Gearings comprising primarily only cams, cam-followers and screw-and-nut mechanisms for conveying or interconverting oscillating or reciprocating motions
    • F16H25/20—Screw mechanisms
    • F16H25/22—Screw mechanisms with balls, rollers, or similar members between the co-operating parts; Elements essential to the use of such members
    • F16H25/2285—Screw mechanisms with balls, rollers, or similar members between the co-operating parts; Elements essential to the use of such members with rings engaging the screw shaft with the inner perimeter, e.g. using inner rings of a ball bearing
    • F16H25/2295—Rings which are inclined or can pivot around an axis perpendicular to the screw shaft axis

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Rolling Contact Bearings (AREA)
  • Transmission Devices (AREA)
  • Spinning Or Twisting Of Yarns (AREA)
  • Reduction Rolling/Reduction Stand/Operation Of Reduction Machine (AREA)

Abstract

The drive comprises a driving spindle (1), two roller bearings (2) and a driven casing (3). The roller bearings (2) used as intermediaries between the spindle (1) and the casing (3) comprise each a rolling ring (5) arranged in the thread (4) of the spindle (1) and are excentrically arranged. The medial axes (6) of the roller bearings (2) are skewed with respect to the axis (7) of the spindle (1). Two sleeves (13) supported inside the casing (3) have each a reception housing (8) for the roller bearings. In order to decrease the friction loss and thereby enhance the efficiency of the driving mechanism, the reception housing (8) extends throughout 180<o> at the maximum so that the roller bearings (2) may be inserted perpendicularly to their axes (6) in the housings (8).

Description

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Изобретение относитс  к машиностроению , в частности к ггриводам с ходовым винтом, используемым дл  преобразовани  вращательногс) движени  в пос- тупательное.The invention relates to mechanical engineering, in particular to lead screw drives used to convert rotary motion into contraction.

Цель изобретени  - повышение КПД за счет снижени  трени ,The purpose of the invention is to increase efficiency by reducing friction,

На фиг. 1 изображен привод, общий вид; на фиг. 2 - то же, продольный разрез; на фиг. 3 - корпус с выемкой дл  наружного кольца подшипника,продольный разрез; на фиг. 4 - кольцевой выступ и часть ходового винта.FIG. 1 shows the drive, general view; in fig. 2 - the same, longitudinal section; in fig. 3 - housing with a recess for the outer ring of the bearing, longitudinal section; in fig. 4 - annular protrusion and part of the spindle screw.

Привод содержит корпус 1, в кото- ром размещены ходовой винт 2 и по крайней мере один эксцентрично установленный подшипник 3, ось 4 которого лежит в плоскости, перпендикул рной оси 5 винта 2, и не Пересе- каегс  с последнзй. Т шутреннее кольцо 6 подшипника 3 имеет кольцевой выступ 7, предпазначЕ нный дл  взаимодействи  с резьбовой канавкой 8 винта 2. Привод также ссщержит корпус 9 с выемкой 10 дл  нар окного кольца 11 подшипника 3, котора  в поперечном сечении представл ет собой полуокружность . Между внутренним 6 и наружным 11 кольцами подшипншса 3 размещены te ла 12 качени , выполненные в виде шариков . В корпусе 1 имеютс  радиальные резьбовые отверсти  13, в которых размещены устан 5вочные винты 1А, св зывающие корпус 9 подшип-ника 3 с корпуThe drive includes a housing 1 in which the lead screw 2 and at least one eccentrically mounted bearing 3 are placed, whose axis 4 lies in a plane perpendicular to the axis 5 of the screw 2, and does not cross with the latter. The teething ring 6 of the bearing 3 has an annular protrusion 7 assigned to interact with the threaded groove 8 of the screw 2. The drive also brakes the housing 9 with a notch 10 for the outer ring 11 of the bearing 3, which in cross section is a semi-circle. Between the inner 6 and outer 11 bearing rings 3 are placed a rolling body 12, made in the form of balls. In case 1 there are radial threaded holes 13, in which are mounted the installation screws 5A 1A, which connect the case 9 of bearing 3 to the housing

сом 1 привода. Привод также снабжен радиальными подшипниками 15, предназначенными дл  установки ходового винта 2 в корпусе 1. Радиус 16 кривизны кольцевого выступа 7 составл ет 0,7- 0,9 радиуса 17 резьбовой канавки 8 винта 2. В этих пределах радиус 16 выбираетс  с таким расчетом, что в точке 18 при-пожени  сил между ходовым винтом 2 и кольцевыми выступами 7 касательна  19 к выступу 7 проходила примерно под углом З к продо- льной оси 5 ходового винта 2.Som 1 drive. The drive is also provided with radial bearings 15 for mounting the lead screw 2 in the housing 1. The radius 16 of the curvature of the collar 7 is 0.7-0.9 of the radius 17 of the screw groove 8 of the screw 2. Within these limits, the radius 16 is selected so that that at point 18, between the lead screw 2 and the ring protrusions 7, the tangent 19 to the ledge 7 passed approximately at an angle Z to the long axis 5 of the lead screw 2.

Привод работает следующим образомThe drive works as follows

Q Q

5five

При вращении ходового винта 2 корпус 1 привода получает поступательное перемещение через промежуточные элементы - подшипники 3, св занные с корпусом посредством установочных винтов 14. При этом снижение трени  достигаетс  за счет выполнени  профил  выемки в виде полуокружности в поперечном сечении. Той же цели служат и размещенные в радиальных резьбовых отверсти х установочные винты, которые позвол ют регулировать эксцентричность подшипника, чем регулируетс  взаимодействие между ходовым винтом и подшипником.When the lead screw 2 rotates, the drive body 1 receives translational movement through the intermediate elements — bearings 3, associated with the housing by means of set screws 14. In this case, friction is reduced by making the recess profile in the form of a semicircle in cross section. The same purpose is served by the set screws placed in the radial threaded holes, which allow the bearing to adjust the eccentricity, which regulates the interaction between the lead screw and the bearing.

Claims (1)

Благодар  выполнению кольцевого выступа внутреннего кольца подшипника с указанным радиусом кривизны при работе привода снижаетс  трение между подшипником и резьбой винта, в результате чего повьш1аетс  КПД. Формула изобретени By making the annular protrusion of the inner ring of the bearing with the specified radius of curvature during operation of the drive, the friction between the bearing and the screw thread decreases, resulting in an increase in efficiency. Invention Formula Привод с кольцом качени  и ходовым винтом, содержащий корпус, размещенные в нем ходовой винт, по крайней мере один эксцентрично установ- ленньй подшипник, ось которого лежит в плоскости, перпендикул рной оси винта, и не п ересекаетс  с последней, а внутреннее кольцо имеет кольцевой выступ, предназначенный дл  взаимодействи  с резьбовой канавкой винта, и корпус с выемкой дл  наружного кольца подшипника, отличающий- с   тем, что, с целью повьш1ени  КПД за счет снижени  трени , профиль выемки корпуса дл  наружного кольца подшипника в поперечном сечении представл ет собой полуокружность, в корпусе выполнены радиальные резьбовые отверсти , радиус кривизны кольцевого выступа составл ет 0,7-0,9 радиуса резьбовой канавки винта, а привод снабжен установочными винтами, размещенными в резьбовых отверсти х дл  св зи корпуса подшипника с корпусом привода.A drive with a rolling ring and a lead screw, comprising a housing, a lead screw housed in it, at least one eccentric mounted bearing, the axis of which lies in a plane perpendicular to the screw axis, and does not intersect the latter, and the inner ring has an annular a protrusion designed to interact with the screw groove of the screw, and a housing with a recess for the outer ring of the bearing, characterized in that, in order to increase efficiency by reducing friction, the profile of the recess of the housing for the outer ring of the bearing in cross section The cross section is a semi-circle, the body has radial threaded holes, the radius of curvature of the annular protrusion is 0.7-0.9 times the radius of the screw thread grooves, and the drive is equipped with set screws placed in the screw holes for connecting the bearing housing to the body. drive. ю (риг. 2.u (rig. 2. Ц}иг.ЗC} ig.Z tsitsi
SU843828179A 1983-04-11 1984-12-10 Actuator with antifriction ring and lead screw SU1409137A3 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19833313453 DE3313453A1 (en) 1983-04-11 1983-04-11 RING RING SCREW DRIVE

Publications (1)

Publication Number Publication Date
SU1409137A3 true SU1409137A3 (en) 1988-07-07

Family

ID=6196329

Family Applications (1)

Application Number Title Priority Date Filing Date
SU843828179A SU1409137A3 (en) 1983-04-11 1984-12-10 Actuator with antifriction ring and lead screw

Country Status (7)

Country Link
EP (1) EP0122596B1 (en)
JP (1) JPS60501018A (en)
AT (1) ATE33064T1 (en)
BR (1) BR8406595A (en)
DE (2) DE3313453A1 (en)
SU (1) SU1409137A3 (en)
WO (1) WO1984004143A1 (en)

Families Citing this family (15)

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Publication number Priority date Publication date Assignee Title
GB8608967D0 (en) * 1986-04-12 1986-05-14 Jaguar Cars Mechanical linear actuator
DE3905274A1 (en) * 1989-02-21 1990-08-23 Gaertner Robert Spindle drive
DE58902467D1 (en) * 1989-07-26 1992-11-19 Fag Schweiz NUT FOR SPINDLE.
US5533417A (en) * 1993-04-12 1996-07-09 Hughes Aircraft Company Leadscrew assembly
GB2277788A (en) * 1993-05-06 1994-11-09 Chen Hsi Kuan Bearing screw and nut assembly
DE19515093A1 (en) * 1995-04-25 1996-10-31 Schaeffler Waelzlager Kg Spiral gearing with threaded spindle with ring nut housing for roller bearings
DE19523395A1 (en) * 1995-06-28 1997-01-02 Schaeffler Waelzlager Kg Screw gear with a rolling ring nut
DE19529037A1 (en) * 1995-08-08 1997-02-13 Schaeffler Waelzlager Kg Screw gear with a rolling ring nut
WO1998038072A1 (en) * 1997-02-28 1998-09-03 Koyo Seiko Co., Ltd. Power steering device
US6516680B1 (en) 1998-10-15 2003-02-11 Koyo Seiko Co., Ltd. Power steering apparatus
EP1884684B1 (en) * 2006-08-03 2013-06-12 Schaeffler Technologies AG & Co. KG Transmission system for transforming a rotary movement into a linear movement
DE102007009626A1 (en) * 2007-03-03 2008-09-04 Tirron-Elektronik Gmbh Linear drive unit for transferring a force from a fixed part to a linear moving part comprises a threaded spindle and a rolling bearing nut and a rolling bearing module
DE102010007278A1 (en) 2010-02-08 2011-11-17 Föhrenbach GmbH Rolling bearing for use in e.g. rotary table, in spindle bearing unit, has outer ring whose outer side comprises axial portions with screw thread, where outer diameter of one portion is larger than outer diameter of other portion
DE102011051514A1 (en) 2011-07-01 2013-01-03 Wittenstein Ag transmission
JP6400860B2 (en) * 2015-05-14 2018-10-03 フォンダツィオーネ・イスティトゥート・イタリアーノ・ディ・テクノロジャＦｏｎｄａｚｉｏｎｅ Ｉｓｔｉｔｕｔｏ Ｉｔａｌｉａｎｏ Ｄｉ Ｔｅｃｎｏｌｏｇｉａ Screw and nut type linear drive mechanism with perfect rolling contact

Family Cites Families (5)

* Cited by examiner, † Cited by third party
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DE1450764A1 (en) * 1964-08-29 1969-04-24 List Dipl Ing Heinrich Roll nut adjustment mechanism with feed spindle
US3614900A (en) * 1970-05-08 1971-10-26 Wahlmark Systems Anti-friction drive
EP0034640B1 (en) * 1980-02-25 1983-09-21 Robert Dr. Gärtner Screw mechanism
DE3012334A1 (en) * 1980-03-29 1981-10-15 Norco Inc., Georgetown, Conn. Low-friction mechanical screw transmission - has radially movable socket with two load surfaces for contg. thread-engaging ball
DE3225495A1 (en) * 1982-07-08 1984-01-12 AMD-Vertriebsgesellschaft für Antriebstechnik mbH, 5800 Hagen Screw mechanism with a screw and a threaded rolling nut

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
Патент US N 3614900, кл. 74-424,8, 1971. *

Also Published As

Publication number Publication date
JPS60501018A (en) 1985-07-04
DE3313453A1 (en) 1984-10-31
ATE33064T1 (en) 1988-04-15
DE3469948D1 (en) 1988-04-21
BR8406595A (en) 1985-03-12
EP0122596B1 (en) 1988-03-16
EP0122596A1 (en) 1984-10-24
WO1984004143A1 (en) 1984-10-25

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